Elite Drop 4: Black BoxBattle beside a downed Air Force One in "Black Box." Multi-level homes overlook the neighboring streets, creating a deadly kill zone for players on the ground. With clear sight lines from house to house, however, snipers are far from safe, with counter-sniping an ever-present threat to their dominance. Those that prefer close-quarters combat can succeed in the tight confines of the crashed airplane or in hunting down enemies posted up within any of the surrounding homes

Elite Drop 5: Black IceShred ice from aboard your snowmobile as you infiltrate a diamond mine in the Special Ops mission, "Black Ice." Melt more than snow when you plant high-grade explosives to shut the mine down forever. This marks the first time Special Ops has been made downloadable online in franchise history.

Elite Drop 6: NegotiatorCash in all your karma as you head to India for high-stakes hostage extraction in "Negotiator," an all-new Special Ops mission in which you’ll breach-and-clear rooms and navigate surface streets to secure the safety of your VIPs. This marks the first time Special Ops has been made downloadable online in franchise history

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Yeah, the “Save all the hostages” one is frustrating to achieve it’s really run and gun, hoping you and them survive.
I think the DLC is great! Love that they include more Spec Ops survival maps and missions with this game instead of just being multiplayer maps.